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Glad they are looking into the cogging issue. Will look into the H2 / H3 when an official fix / mod is released.

Awesome video and very informative. My two cents on the cogging. I never noticed for years until after hearing so much about cogging I tried to feel it and once I did I can't un feel it. Here are the reasons I had a hard time feeling it and, in a way, could be a band aid fix for many. I'm a private pilot and want to feel all the bumps on the runway and in the air. I was so glad when msfs finally got the turbulence closer to real life. When landing, tree top level is when you feel the most turbulence on landing in real life, above 1500 feet it smooths out and higher the better in nice weather. Everyone should take one flight lesson just to know how it really feels in a plane. Flying is extremely smooth once in smooth air. I've also had to brace one hand on the roof of the plane so my head would not hit it from turbulence. Ok so here is what works for me and I did this for my personal preference and not to smooth out the cogging, that was added benefit. I have everything turned up, I mean everything, turbo, etc (no smoothing). I have yaw slightly down more because its harder to keep straight on a runway with it jigging back and forth also so the frame won't hit the actuator rods. Second thing and maybe most important is the placement of my Butt kicker. I removed an adjustment knob that reclines my seat and attached it directly to the metal plate on the side of my seat. I can feel the vibrations so much better than attaching to the frame (night and day difference) and it helps with overheating (you can turn it down). I have the h6 with the sfu upgrade and I don't use the struts. Hope this helps others until we get a real fix. I'm so grateful that dofreality produced a 6 dof that I could afford. I've had mine for four years. I only fly in mine and don't car race due to the large panel with instruments attached to it. I rarely fly the airliners and a person might feel the cogging a bit more in a airliner.

I will be attending CES as well !! Can’t wait to hang out with the DOF guys.

Great video as always Mark! I'm not a platform user myself, but this video has me hyped for those who use these rigs for VR. Heck, this may get me into more sims...

Great interview. D.O.F. Reality - the proper pronunciation. Mark nailed it. LOL GYGO for the win!!!

Great interview mate........re cogging, one of the ways I use to somewhat decrease the incidence of cogging (it does NOT completely remove it but in my subjective view it definitely helps) is to set up a %nn dead zone on the three axis of my joystick in MSFS2020 Control Options.

Great video, thanks Mark! Just got a P6, and I‘m totally flashed after the first couple of flights. I‘d be interested in a monthly or bi-monthly feed from Igor with the latest DOF news. Live would be great, but not really necessary. Thanks again for making al this information available to the community!

A fascinating insight by two legends in this genre, what more could you ask for? I really enjoyed this one, please do more! :) Oh and as for the correct way to say ''D.O.F'' Reality, I've made a mental note, although I can't promise I'll say it correctly in my future videos, blame it on old age or something😅

Good interview. I like hearing about future improvements coming

Thank you so much for doing these interviews with Igor. I've been a long time H6 user who was a very early SFU adopter. I've been on the fence with doing Robert's mod so I really appreciate you addressing the current cogging issue with Igor while also touching on the subject of the mod with Igor. I felt the biggest concern is noise but for a single guy with a house, that's not a concern for me. I am curious to the durability of the motors as my rig setup is quite heavy with a SimXperience G Seat attached but from all I can find the mod motors should be able to handle it without the dampening kit I need now with the DOF motors. Again this was very helpful. Think I'm gonna try the mod & see how it works. Hopefully DOF will have developed something in the future to resolve this issue that I can fall back to if the mod doesn't pan out.

Hello Mark, It's Darryl, my H6 is a couple towns over and should be here monday the 12th. Anyways listening to your conversation with Igor, pertaining to the clogging issue, trying to slow down motors but still have torque. increase the number of threads on the worm gear, otherwise known as going from a course thread to a finer thread. A minor motor speed reduction would have same effect as slowing speed down alot without loosing torque. My opinion. Pass it on to Igor if you wish.

Thanx again for the discount count, saved me a fortune on P&P. The VAT from Poland to UK was £290. Just humped the two boxes up the stairs, poor DHL driver. Just found out the other day that my 4090TI won't fit my case. Why do they make cases so small nowadays?

Glad to hear there is a solution in the future to some of the performance concerns! I will say though as a rally guy who did the mod... Pretty sure it throws me around really good, running it at 400kp right now

Great video Mark !

Thanks for the interview, it was very interesting to hear Igor's detailed thoughts on the Cogging issue. It's quite true that it's only a problem with flight sims with GA and other slow turning aircraft. All of my DOF rigs have performed excellently with driving sims and rollercoasters, even with the original worm gearboxes. So the jerkiness during slow flight sim movements has always been my only regret with DOF rigs. I bought my H3 several years ago with the original worm gearboxes and was unhappy with the jerks in GA flight sims, caused then mainly by the worm gear lash. Then the SFU upgrades became available were a vast improvement overall, but as Igor said, that made the slow rev DC motor cogging more apparent because of the increased precision. I was able to significantly reduce the effect by simply moving the vertical pushrods to the innermost holes of the SFU lever arms, effectively down gearing the movement by about 2:1, and I put a video on tube illustrating how smooth it then was with a C172 in xPlane. It did unfortunately also reduce the maximum angular range by the same amount, but for me that was a small downside, because the maximum angular movement of the H3/P3 was ample anyway with the new SFU gearboxes. Here's my KZfaq video showing that mod: kzfaq.info/get/bejne/gNWpfb2ir5ydlJ8.html ...but then the lure of the H6 was too great, with it's ability to heave and sway, so I upgraded to an H6 SFU. Unfortunately this brought the cogging back, and my simple solution of moving the pushrods on the SFU lever arms was no longer feasible, because of the triangular extension plates. When Robert published his planetary motor mod I was able to fit it quite easily because I have a lathe and was able to modify the old worm gearbox flanges myself. Here's my youtube video comparing the direct drive motors with the planetary motors while I was changing them over on my H6: kzfaq.info/get/bejne/aLuXhamGxM2rd6s.html I'm still very pleased with the result. All flight movements in xPlane and MsFs are now perfectly smooth, even during autopilot micro-movements. It does indeed reduce the rapidity of movements in driving sims and things like rollercoasters, but not to the extent of spoiling them IMHO. Here's a youtube video of Dirt Rally with the planetary motors, and without even changing the KP setting in SRS, showing ample rapid movement: kzfaq.info/get/bejne/o9SfidSByZ7UlJs.html (The motors sound loud in this video because the microphone was in the camera showing a closeup of the motots, only a few inches away from them). The aspect of the increase in noise level is very subjective though. My wife is mostly very tolerant of my toys, but I soon found that my Buttkicker was a No No, whereas she hasn't even noticed the planetary motor noise from outside the room. I agree the one thing that's an unknown for me is the longevity of the gears, which Igor seemed to be the most focussed on. I've only had about 30 hours so far, and that's mostly with gentle GA and Heli movements, though I have also had many AC and Dirt rally sessions. I'm an ex mechanical and electrical engineer, so I have some understanding of this subject and I readilly admit that the original DOF direct drive motors have no wearing parts other than the shaft bushes and carbon brushes, so would have an almost unlimited lifespan even with continuous use with possibly just rare brush replacements. It's true that planetary gearbox motors are available with a wide range of durability, some even only have nylon gears, but the Phidgets motors have all steel gears and rated torque of 10kg/cm, which is slightly higher than the original direct drive motors. Tha fact that you can hear them is not necessarily an indication of wear or imminent failure because all straight cut gears are audible anyway. I would have thought that a possible solution to cogging would be to use higher ratio SFU screw shafts, like conventional linear actuators. This would increase motor revs per degree of linear lift without introducing additional gear trains. ...anyhow, I'm still very impressed with all of my DOF reality purchases, and even with hindsight I'd have made the same choices again.

Good video!

Great interview. Can you ask Igor about the range of motion restriction next time we talket about on the new h6.

Very interesting. It would be very good to know in term of evolution if there is any plan from DOF Reality to propose an solution to be compatible with Forced Feedback base such as FFB Rhino. FFB base are becoming increasingly more popular, but they are very tall compared to standard joystick base, especially if used in conjunction with a stick extension. It would require either to raise significantly the seat or to change the shape of the backbone structure to allow lower attachment point for the base. As of today users are forced to decide either to go for a FFB base or to go for DOF motion platform, while it shall be possible to have both.

The question that wasn’t asked is “This new motor fix they are testing for the cogging mean there will there be a backwards compatible version to fit old models or will a whole new motion be required?” and “Will the new motors be offered to people like me who found out about the cogging after purchase at a discounted price?” Just to be clear it doesn’t make it unusable and as there was no fix that I was happy in doing, to continue using VR I had no real option but to live with it, this is because I suffer with VR motion sickness and without the DOF reality motion I can’t use VR for flight simulator for any length of time without feeling ill.

Buying defs once the clogging fixed. H3 baby.

Hi, Motion platforms is a new world for me. I fly in VR with MSFS2020. And movement is the next level of sim experience. I have seen all of Mark's videos and they are very educational. But ... as long as the 'Cogging' problem is not solved, I will not order anything from D.O.F. Reality ...

Is there a update to when the "Cogging" solution implementation?

Just got into DCS and awaiting a shipment from Ukraine .....DOF Reality P3. My setup is for the F18 since it's the most training I have had in real life. The current attachments are the Thrustmaster Warthog HOTAS with the F18 stick, Pimax Crystal. Challenges have been shipping (Alaska) and finding items like the chair and other items I plan to get like winging MIP (VR) panels and Buttkicker seem to be an issue. Motion Compensation is also something I am looking into. AMD doesn't play nice with Pimax but I am willing to sacrifice the time to reset the crystal a few times just to avoid Nvidia. Slava Ukraine 🇺🇦

My worst and expensive mistake until COG is fixed… no airplane flies like this. No KZfaqr was serious about this obvious vibration, “so good , so smooth” are you serious…??? Are you being paid?? … what a mess of a RIG. A solution for it is urgent, or I truly want my money back…

Through your older video and discount code I decided to give it a try. As soon as I bought it, they invalidate the codes and dropped the price by more than $500😮, What a joke

Hi Mark and Igor, Many thanks for this informative interview. Just starting out on building a flight simulator. Motion sim with VR is my ultimate goal. I have a question about the motion in your sim if I may. I just watched this kzfaq.info/get/bejne/ntCkf8t2ptrNnHU.htmlsi=wxAwCWld902gxoAH video and it occurred to me that when you are turning for your second attempt at landing, your body is tilted and you are attempting to keep your head level. This seems unnatural to me. I would have thought that in a coordinated turn the forces on your body would be more or less pushing you down into the seat. As such I would expect the motion rig to be horizontal with you tipped back a bit to simulate the downward force? Do you know if the SRS driver uses any of the techniques described in this video? kzfaq.info/get/bejne/psyEl611l7XFm3U.htmlsi=NDo5Zj26mvdNEBPO Thanks again for your great channel. Kind regards, Chris Williams, UK

Last interview, Igor said its software issues and now its hardware limitations as we all said. So you lost my trust and my business, I went with ERacing actuators and racing cockpit pro for 4.5k total cost and it’s far superior to my P3 for flights sim.